Kulm Hotel St. Moritz
kulm.com
- Industry
- Tourism & hospitality
- Headquarters
- St. Moritz, Grisons
- Type
- private
- Employees (approx.)
- 300
- Checked on
- 19 October 2026
Protection against forged senders: largely protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 19 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 57.3 ▲ 6.7
- Canton avg.: 47.2 ▲ 16.8
- Overall avg.: 53.5 ▲ 10.5
- Rank 12 of 38 in the industry
Findings
-
!SPF close to the 10-lookup limit (9)
One more sending service can break the limit. Flattening or subdomains for third parties create headroom.
-
!External report receiver not authorised
The authorisation record for an external rua domain is missing (RFC 7489 §7.1); many receivers then send no reports.
-
!DKIM key below 2048 bits
RSA-1024 is considered too weak (RFC 8301, M3AAWG). Rotate to 2048-bit keys.
-
!DNSSEC not enabled
Without DNSSEC, DNS answers can be forged in transit. DANE requires DNSSEC.
-
!No MTA-STS
Without MTA-STS (or DANE) inbound encryption is not enforced; an attacker on the path can downgrade to plain text.
-
!No TLS reporting (TLS-RPT)
Without TLS-RPT the organisation does not learn when senders fail to deliver encrypted.
Who runs the mail?
- Mailbox provider
- Microsoft 365
- Provider jurisdiction
- USA · MX: US
- Detection confidence
- 88 / 100
- Microsoft tenant
- Managed · Kulm Group
- Tenant region
- EU
Signals (7)
| MX | Microsoft 365 | kulm-com.mail.protection.outlook.com |
|---|---|---|
| DKIM | Microsoft 365 | selector1 → selector1-kulm-com._domainkey.kulm.onmicrosoft.com |
| Autodiscover | Microsoft 365 | autodiscover.outlook.com |
| Domain verification | Microsoft 365 | MS=ms91357941 |
| Network | Microsoft 365 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation |
| Domain verification | Google Workspace | google-site-verification=TzV9My1XFq-H8DG |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | kulm-com.mail.protection.outlook.com | 52.101.187.1 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | – |
52.101.185.12 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US | |||
52.101.185.13 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
SPF
v=spf1 include:_spf1.kulm.com include:_spf2.kulm.com include:_spf3.kulm.com include:_spf4.kulm.com include:_spf5.kulm.com include:_spf6.kulm.com include:_spf7.kulm.com include:%{ir}.%{v}.spf.sabre.com.spf.has.pphosted.com include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all- all
-all- DNS lookups
- 9 / 10
- Includes
_spf1.kulm.com_spf2.kulm.com_spf3.kulm.com_spf4.kulm.com_spf5.kulm.com_spf6.kulm.com_spf7.kulm.com
DMARC
v=DMARC1; p=quarantine; rua=mailto:it-helpdesk@kulmgroup.com,mailto:rua@dmarc.mailertest.com; adkim=r; aspf=r; pct=100- Policy
- p=quarantine
- Subdomains (sp)
- inherits p=quarantine
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
it-helpdesk@kulmgroup.comrua@dmarc.mailertest.com
DKIM
| Selector | Key | delegated to |
|---|---|---|
s1 | RSA 2048 | s1.domainkey.u2081681.wl182.sendgrid.net |
s2 | RSA 1024 | s2.domainkey.u2081681.wl182.sendgrid.net |
selector1 | RSA 1024 | selector1-kulm-com._domainkey.kulm.onmicrosoft.com |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- missing
- DANE
- missing
- DNSSEC
- missing
- TLS-RPT
- missing
- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
Microsoft 365GoogleAppleMeta/FacebookDocuSign
History
- Score 64 · DMARC quarantine
Raw data
kulm.com. IN MX 10 kulm-com.mail.protection.outlook.com.
kulm.com. IN TXT "v=spf1 include:_spf1.kulm.com include:_spf2.kulm.com include:_spf3.kulm.com include:_spf4.kulm.com include:_spf5.kulm.com include:_spf6.kulm.com include:_spf7.kulm.com include:%{ir}.%{v}.spf.sabre.com.spf.has.pphosted.com include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all"
_dmarc.kulm.com. IN TXT "v=DMARC1; p=quarantine; rua=mailto:it-helpdesk@kulmgroup.com,mailto:rua@dmarc.mailertest.com; adkim=r; aspf=r; pct=100"